My usual tech stack is React native/React/Redux and Relay. In my daily routine I like to work outside my comfort and knowledge set, as continuing to learn new languages and development techniques are important to me and add value to my projects. I am familiar with REST API but I prefer GraphQL more. Also in my recent work with Luxemburg start-up for blockchain smartcontracts I have had good experience with typescript, PostgreSQL, react-native, redux, redux-saga and React Native maps/Google Maps API. I am confident I will be an asset to your startup.